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Product Detailed Parameters
- Description：DIODE ZENER 47V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：25 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 33.8 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Grade：-
- Qualification：-
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Overview
The Microsemi Corporation 1N5368B is a silicon 5.0-watt Zener diode with a nominal voltage of 47V and a ±5% tolerance. It operates within a temperature range of -65°C to +150°C and features a T-18 axial-lead plastic package. Key electrical characteristics include a maximum dynamic impedance of 25 Ohms, a maximum reverse current of 0.5 µA at 33.8V, and a maximum regulator current of 100 mA. The device withstands high surge stresses and provides stable voltage regulation across broad operating currents.
Feature Summary
- Provides precise voltage regulation with tight manufacturing tolerances
- Withstands high surge stresses for robust transient protection
- Features flexible axial-lead mounting terminals for versatile integration
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement systems
Procurement Notes
Verify the specific suffix (e.g., e3) against procurement requirements to confirm RoHS compliance status. Confirm that the T-18 package dimensions align with PCB layout constraints. Ensure thermal management strategies account for the specified junction-to-lead thermal resistance during operation.
Selection Notes
Select this component when a 47V regulation point is required with ±5% accuracy. Evaluate the 5W power dissipation capability against circuit load conditions. Consider the wide operating temperature range for environments subject to extreme thermal variations.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a broad selection of voltages from 3.3V to 200V. The B suffix specifically denotes a standard voltage tolerance of plus or minus 5%, distinguishing it from other tolerance options available in the family.
Replacement Considerations
Surface mount equivalents are available as SMBJ5368B or SMBG5368B. Military screening levels can be obtained by adding MQ, MX, or MV prefixes to the base part number.
